Paint make-up pen

Abstract

The utility model discloses a painting make-up pen, and relates to the technical field of coating tools, a pen point is detachably connected at an opening at the front end of a material storage tube, external threads are arranged on the outer wall of the pen point, internal threads are arranged on the inner wall at the front end of the material storage tube, and the pen point is connected with the material storage tube through the threads; a mounting groove is formed in the pen point, a plastic spring and a ball are arranged in the mounting groove, the plastic spring is located between the ball and the discharging pipe, the discharging pipe is communicated with the interior of the plastic spring, and the plastic spring is of a hollow columnar structure. According to the paint make-up pen, the plastic spring is adopted, the material of the plastic spring is the same as that of the material storage pipe and the pen point, the metal spring does not need to be detached and recycled during recycling, then the recycling cost is reduced, the inner thread is arranged on the inner wall of the front end of the material storage pipe, and the pen point is connected with the material storage pipe through the thread; and the pen point is convenient to replace.

Description

TECHNICAL FIELD

[0001] The utility model relates to a coating tool technical field, concretely relates to a paint touch-up pen. BACKGROUND

[0002] The paint touch-up pen is a kind of automobile scratch repair tool, and the appropriate model can be selected by comparing with the original color of vehicle paint.In the small scratch or paint peeling place, after being coated with the paint touch-up pen, the scratch can be repaired, covered and filled.

[0003] A kind of paint touch-up pen is disclosed in Chinese patent (authorized announcement No.CN 219597195 U), the pen core and the pen core base are connected by spring pressing form by being set, steel ball in pen barrel is stirred paint in pen barrel when being pressed and shaken, ensure that oil flows smoothly, but, using traditional spring of screw structure, when recycling, pen body is disassembled after being disassembled, and then recycling is carried out, lead to higher recycling cost, and when replacing paint touch-up pen pen core alone, on the one hand, it is troublesome to operate, on the other hand, pen core is easily extruded and deformed, affect use. UTILITY MODEL CONTENT

[0004] To solve the above technical problems, the utility model provides a paint touch-up pen, including storage tube, the front end opening of storage tube is detachably connected with pen head, the outer wall of pen head is provided with external thread, the inner wall of the front end of storage tube is provided with internal thread, and the pen head is connected with the storage tube by thread;

[0005] Installation groove is formed in the pen head, plastic spring and ball are arranged in the installation groove, the plastic spring is located between the ball and the discharge pipe, the discharge pipe is communicated with the plastic spring, and the plastic spring is hollow column structure.

[0006] Preferably, the front end of the pen head is provided with a convex ring in the circumferential direction.

[0007] It further includes a pen cap, one end of the pen cap away from the opening is provided with a cavity, the cavity extends along the axial direction of the pen cap, the inner wall of the cavity close to the opening of the pen cap is provided with a pen cap clamping groove, and the front end of the pen head is provided with a convex ring in the circumferential direction.

[0008] Preferably, the pen head is provided with a pen head through hole in the axial direction, the installation groove is formed in the end of the pen head away from the bristles, the installation groove is communicated with the pen head through hole, and the discharge pipe is installed in the pen head through hole.

[0009] Preferably, one end of the discharge pipe extends to the bristles, the other end of the discharge pipe extends into the installation groove, and the outer edge of the discharge pipe is provided with a boss.

[0010] Preferably, one end of the plastic spring abuts against the boss, and the other end of the plastic spring abuts against the ball.

[0011] Preferably, a limiting ring is clamped at the opening of the mounting groove, a discharge hole is formed in the middle of the limiting ring, and the diameter of the discharge hole is smaller than the diameter of the ball.

[0012] Preferably, a flow cavity is formed between the limiting ring and the mounting groove, and the diameter of the flow cavity is greater than the diameter of the ball.

[0013] Preferably, the outer edge of the ball is provided with a first groove, the first groove is annular, the first groove is in communication with the flow cavity, and the outer edge of the ball is further provided with a plurality of second grooves, one end of the second groove is in communication with the first groove, and the other end of the second groove is in communication with the inside of the plastic spring.

[0014] Preferably, the plastic spring comprises a first supporting ring, a second supporting ring and a third supporting ring, the third supporting ring and the first supporting ring are connected through a connecting segment, and the third supporting ring and the second supporting ring are connected through a connecting segment.

[0015] Preferably, the inner wall of the first supporting ring is provided with a slope structure, the first supporting ring is used for supporting the ball, and the slope structure is in contact with the ball, so that the contact area of the first supporting ring and the ball is increased.

[0016] The technical effects and advantages of the present application are as follows:

[0017] 1. In the present application, the paint touch-up pen adopts a plastic spring, the material of the plastic spring is the same as that of the storage tube and the pen head, and during recycling, the metal spring does not need to be disassembled and then recycled, thereby reducing the recycling cost.

[0018] 2. In the present application, the front end inner wall of the storage tube is provided with an internal thread, the pen head and the storage tube are connected through threads, when the pen head is blocked, the pen head can be conveniently replaced, the convex ring is embedded in the pen cap clamping groove, the pen head and the pen cap are connected together, the stability of the connection between the pen head and the pen cap is improved, and the bristle pollution caused by the falling of the touch-up pen on the ground is avoided. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 is a schematic view of a touch-up pen structure provided by the present application;

[0020] Figure 2 is a longitudinal sectional view of a pen cap in the touch-up pen provided by the present application;

[0021] Figure 3 is a sectional view of the pen head and the pen cap in the touch-up pen provided by the present application;

[0022] Figure 4 is a structure enlarged schematic view of A in the touch-up pen provided by the present application; Figure 3

[0023] Figure 5 ​Figure is a structure diagram of the plastic spring in the paint refilling pen provided in the embodiment of the present application.

[0024] In the figure: 1, storage tube; 11, storage tube clamping groove; 12, internal thread; 2, pen head; 21, planar structure; 22, protruding ring; 23, external thread; 24, flow cavity; 25, mounting groove; 26, pen head through hole; 3, bottom rotating seat; 4, pen cap; 41, protruding block; 42, cavity; 43, pen cap clamping groove; 5, brush hair; 6, discharge tube; 61, protruding platform; 7, ball; 71, first groove; 72, second groove; 8, plastic spring; 81, first supporting ring; 811, inclined surface structure; 82, second supporting ring; 83, third supporting ring; 84, connecting section; 9, limiting ring; 91, discharge hole. DETAILED DESCRIPTION

[0025] The present application will be further described below in conjunction with the drawings and specific embodiments. The embodiments of the present application are given for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present application to the forms disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art. Embodiments are chosen and described in order to best explain the principles of the present application and its practical application, and to enable others skilled in the art to understand the present application for various embodiments with various modifications as are suited to the particular use contemplated.

[0026] Please refer to Figures 1-2 In the embodiment, a paint refilling pen is provided, which comprises a storage tube 1, a pen head 2 is detachably connected at the front end opening of the storage tube 1, the pen head 2 is provided with a pen head through hole 26 in the axial direction, the pen head 2 is provided with brush hair 5 at the front end through hole, the brush hair 5 extends from the inside of the pen head 2 to the outside of the pen head 2 in the axial direction, and the rear end of the storage tube 1 is connected with a bottom rotating seat 3.

[0027] In the embodiment, the storage tube 1, the pen head 2 and the bottom rotating seat 3 are all made of plastic, including but not limited to polyethylene, polypropylene and polyvinyl chloride.

[0028] In the embodiment, the bottom rotating seat 3 comprises an operation sleeve, a main body rod, an auxiliary ring, a push rod and a rubber plug, the main body rod is rotated by rotating the operation sleeve, the helical thread on the push rod interacts with the helical thread on the inner wall of the auxiliary ring, the push rod continuously advances forward, the push rod drives the rubber plug to move forward, and the rubber plug moves along the axial direction of the storage tube 1 to extrude the raw material from the storage tube 1 to the pen head 2. Since the bottom rotating seat 3 is prior art, no further description is given here.

[0029] In the embodiment, the middle outer edge of the storage tube 1 is provided with a storage tube clamping groove 11, the storage tube clamping groove 11 is used for connecting the cap 4, the inner wall of the opening of the cap 4 is provided with a plurality of protrusions 41 corresponding to the storage tube clamping groove 11, the outer surface of the protrusion 41 is arc-shaped, when the cap 4 is sleeved on the front end of the storage tube 1, the protrusion 41 abuts in the storage tube clamping groove 11, the cap 4 and the storage tube 1 are connected together.

[0030] In the embodiment, the cap 4 is made of plastic, including but not limited to polyethylene, polypropylene, polyvinyl chloride.

[0031] Further, one end of the cap 4 away from the opening is provided with a cavity 42, the cavity 42 extends along the axial direction of the cap 4, the longitudinal section of the cavity 42 is conical, the inner diameter of the cavity 42 close to the opening of the cap 4 is greater than the inner diameter of the cavity 42 away from the opening of the cap 4, and the inner wall of the cavity 42 close to the opening of the cap 4 is provided with a cap clamping groove 43.

[0032] Further, the outer wall of the pen head 2 is provided with a plurality of planar structures 21 extending along the axial direction, and the front end of the pen head 2 is provided with a convex ring 22 along the circumferential direction. In use, the cap 4 is sleeved on the storage tube 1, the pen head 2 enters the cap 4, when the bristles 5 enter the cavity 42, because the cavity 42 is conical, the end of the cavity 42 with larger inner diameter facilitates the bristles 5 to enter, and the end of the cavity 42 with smaller inner diameter plays a role in gathering the bristles 5, the convex ring 22 is embedded in the cap clamping groove 43, so that the pen head 2 and the cap 4 are connected together, the stability of the connection between the pen head 2 and the cap 4 is improved, and the pollution of the bristles 5 caused by the cap 4 falling off due to the paint pen falling to the ground is avoided.

[0033] Referring to Figures 3-4 As shown in the figure, one end of the pen head 2 away from the bristles 5 is provided with a mounting groove 25, the mounting groove 25 is communicated with a pen head through hole 26, a discharge pipe 6 is installed in the pen head through hole 26, one end of the discharge pipe 6 extends to the bristles 5, the other end of the discharge pipe 6 extends into the mounting groove 25, the outer edge of the discharge pipe 6 is provided with a boss 61, the boss 61 is annular, the outer diameter of the boss 61 is greater than the outer diameter of the discharge pipe 6, the outer edge of the boss 61 abuts against the inner wall of the mounting groove 25, and the boss 61 and the mounting groove 25 form an interference fit.

[0034] Further, the mounting groove 25 is provided with a plastic spring 8 and a ball 7, the plastic spring 8 is a hollow columnar structure, the plastic spring 8 is located between the ball 7 and the discharge pipe 6, the discharge pipe 6 is communicated with the inside of the plastic spring 8, one end of the plastic spring 8 abuts against the boss 61, and the other end of the plastic spring 8 abuts against the ball 7.

[0035] In the embodiment, the cap 4 is made of plastic, including but not limited to polyethylene, polypropylene, polyvinyl chloride.

[0036] Further, the mounting groove 25 is clamped with a limiting ring 9 at the opening, the limiting ring 9 is provided with a discharging hole 91 in the middle, the diameter of the discharging hole 91 is smaller than the diameter of the ball 7, when the paint pen is not used, the ball 7 blocks the discharging hole 91, avoiding the raw material flowing into the pen head 2 from the discharging hole 91.

[0037] In the embodiment, a flow cavity 24 is formed between the limiting ring 9 and the mounting groove 25, the diameter of the flow cavity 24 is larger than the diameter of the ball 7.

[0038] The outer edge of the ball 7 is provided with a first groove 71, the first groove 71 is annular, the first groove 71 is communicated with the flow cavity 24, the outer edge of the ball 7 is also provided with a plurality of second grooves 72, one end of the second groove 72 is communicated with the first groove 71, the other end of the second groove 72 is communicated with the inside of the plastic spring 8.

[0039] When the paint pen is used, the operation sleeve is rotated, the raw material in the storage tube 1 is extruded by the rubber plug, the raw material extrudes the ball 7 from the discharging hole 91, the ball 7 extrudes the plastic spring 8, the plastic spring 8 is deformed under pressure, the raw material enters the flow cavity 24 from the gap between the ball 7 and the discharging hole 91, and then flows into the inside of the plastic spring 8 from the first groove 71 and the second groove 72, and then flows to the bristles 5 from the discharging tube 6, stop rotating the operation sleeve, after the pressure balance of both ends of the ball 7, the plastic spring 8 resets, pushes the ball 7 to the discharging hole 91, avoiding the raw material flowing out from the discharging hole 91, compared with the paint pen using the metal spring to support the ball 7 in the prior art, the paint pen using the plastic spring 8 in the application, the material of the plastic spring 8 is the same as the material of the storage tube 1 and the pen head 2, when recycling, the metal spring does not need to be disassembled and then recycled, thereby reducing the recycling cost.

[0040] Further, the outer wall of the pen head 2 is provided with an external thread 23, the inner wall of the front end of the storage tube 1 is provided with an internal thread 12, the pen head 2 and the storage tube 1 are connected through the threads, when the pen head 2 is blocked, it is convenient to replace the pen head 2.

[0041] Referring to Figure 5 As shown in the figure, the plastic spring 8 includes a first supporting ring 81, a second supporting ring 82 and a third supporting ring 83, the size of the first supporting ring 81 and the second supporting ring 82 is the same, the outer diameter of the third supporting ring 83 is smaller than the outer diameter of the first supporting ring 81, the inner diameter of the third supporting ring 83 is smaller than the inner diameter of the first supporting ring 81, the third supporting ring 83 and the first supporting ring 81 are connected through the connecting segment 84, the third supporting ring 83 and the second supporting ring 82 are connected through the connecting segment 84, the plastic spring 8 has a structure that the both ends are large and the middle is small, when the plastic spring 8 is extruded, the both ends are deformed to the middle under the limitation of the inner wall of the mounting groove 25.

[0042] Further, the inner wall of the first supporting ring 81 is provided with a slope structure 811, the slope structure 811 is annular, the first supporting ring 81 is used for supporting the ball 7, the contact area between the first supporting ring 81 and the ball 7 is increased through the slope structure 811 and the ball 7, so that the ball 7 is more stable during movement and is not easy to rotate.

[0043] In some embodiments, the inner wall of the first supporting ring 81 can also be provided with a limiting rib, and the outer edge of the ball 7 is provided with a limiting groove, so that the positioning of the ball 7 is realized through the cooperation of the limiting rib and the limiting groove, and the phenomenon that the ball 7 rotates during movement and affects the discharging is avoided.

[0044] Obviously, the embodiments described are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art and related fields without creative labor should belong to the protection scope of the present application. The structures, devices and operation methods not specifically described and explained in the present application, if not specially described and limited, are implemented according to the conventional means in the art.

Claims

1. A touch-up paint pen, comprising a reservoir tube (1), characterized in that, The front opening of the storage tube (1) is detachably connected to the pen tip (2). The outer wall of the pen tip (2) is provided with an external thread (23), and the inner wall of the front end of the storage tube (1) is provided with an internal thread (12). The pen tip (2) and the storage tube (1) are connected by threads. The pen tip (2) has an installation groove (25) inside, and a plastic spring (8) and a ball bearing (7) are installed in the installation groove (25). The plastic spring (8) is located between the ball bearing (7) and the discharge tube (6). The discharge tube (6) is connected to the inside of the plastic spring (8). The plastic spring (8) has a hollow columnar structure.

2. A touch-up paint pen according to claim 1, characterized in that, The pen tip (2) has a convex ring (22) circumferentially arranged at the front end; It also includes a pen cap (4), which has a cavity (42) at one end away from the opening. The cavity (42) extends along the axial direction of the pen cap (4). The inner wall of the cavity (42) near the opening of the pen cap (4) has a pen cap groove (43). The front end of the pen tip (2) has a convex ring (22) along the circumferential direction.

3. A touch-up paint pen according to claim 1, characterized in that, The pen tip (2) has a pen tip through hole (26) arranged along the axial direction. The pen tip (2) has an installation groove (25) at the end away from the bristles (5). The installation groove (25) is connected to the pen tip through hole (26). A discharge pipe (6) is installed in the pen tip through hole (26).

4. A touch-up paint pen according to claim 3, characterized in that, One end of the discharge pipe (6) extends to the bristles (5), and the other end of the discharge pipe (6) extends into the mounting groove (25). A boss (61) is provided on the outer edge of the discharge pipe (6).

5. A touch-up paint pen according to claim 1, characterized in that, One end of the plastic spring (8) abuts against the boss (61), and the other end of the plastic spring (8) abuts against the ball (7).

6. A touch-up paint pen according to claim 5, characterized in that, A limiting ring (9) is engaged at the opening of the mounting groove (25). A discharge hole (91) is provided in the middle of the limiting ring (9). The diameter of the discharge hole (91) is smaller than the diameter of the ball (7).

7. A touch-up paint pen according to claim 6, characterized in that, A flow cavity (24) is formed between the limiting ring (9) and the mounting groove (25), and the diameter of the flow cavity (24) is larger than the diameter of the ball (7).

8. A touch-up paint pen according to claim 7, characterized in that, The outer edge of the ball (7) is provided with a first groove (71), which is annular and communicates with the flow cavity (24). The outer edge of the ball (7) is also provided with a plurality of second grooves (72), one end of the second groove (72) communicates with the first groove (71), and the other end of the second groove (72) communicates with the interior of the plastic spring (8).

9. A touch-up paint pen according to claim 8, characterized in that, The plastic spring (8) includes a first support ring (81), a second support ring (82) and a third support ring (83). The third support ring (83) and the first support ring (81) are connected by a connecting section (84), and the third support ring (83) and the second support ring (82) are connected by a connecting section (84).

10. A touch-up paint pen according to claim 9, characterized in that, The inner wall of the first support ring (81) is provided with a slope structure (811). The first support ring (81) is used to support the ball (7). The slope structure (811) contacts the ball (7), increasing the contact area between the first support ring (81) and the ball (7).

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